Skip to main content
. 2004 Jan;134(1):101–117. doi: 10.1104/pp.103.032524

Table II.

Phenotypic segregations in the F2 progeny of crosses involving ucu mutants

Figures indicate the no. of plants belonging to a given phenotypic class. WT, Wild-type phenotype. UcuX, Ucul, and UcuW indicate extreme, intermediate, and weak Ultracurvata phenotype, respectively. UcuXH, Extreme Ultracurvata phenotype and helical rotation of some organs.

Cross (♀ × ♂)
F1
F2
WT Ucul UcuX UcuXH UcuW Putative double mutants χ2
ucu2-1/ucu2-1 × ucu1-1/ucu1-1 38 Ucul 47 111 54 51 — 13 2.135a
ucu2-1/ucu2-1 × ucu1-2/ucu1-2 9 Ucul 54 104 60 56 — 14 1.778a
ucu2-1/ucu2-1 × ucu1-3/ucu1-3 30 WT 147 — — 57 58 11 4.001b
a

The χ2 values represent the fit of the data (only families segregating for the putative double mutant are shown) to an expected 3:6:3:3:1 phenotypic segregation

b

The χ2 values represent the fit of the data (only families segregating for the putative double mutant are shown) to an expected 9:3:3:1 phenotypic segregation. Corresponds to a modified 3:6:3:1:2:1 segregation, given that the ucu1-1/UCU1; ucu2-1/ucu2-1 and the ucu1-1/ucu1-1; ucu2-1/ucu2-1 individuals were phenotypically indistinguishable